Asymmetrical Platinum and Rhodium Dinuclear Complex Strongly Bound to Filled dz2 Complexes by Unbridged Pt-metal Bonds Toward Heterometallic-Extended Metal Atom Chains

Autor: Kazuhiro, Uemura, Yuya, Ikeda, Atsushi, Takamori, Tomoyuki, Takeyama, Satoshi, Iwatsuki
Rok vydání: 2022
Zdroj: Chemistry (Weinheim an der Bergstrasse, Germany).
ISSN: 1521-3765
Popis: Heterometallic extended metal atom chains (EMACs) aligned with three types of metals were rationally synthesized by forming unbridged metal-metal bonds based on the interactions between highest and lowest unoccupied molecular orbitals at the dz2 orbital. These chains form pentanuclear structures aligned as Rh-Pt-M-Pt-Rh with relatively large formation constants of 5.0 × 1013 M-2 for M = Pt and 6.3 × 1011 M-2 for M = Pd, while retaining their backbones in solution. In the case of M = Cu, the original Cu(+2) atoms were reduced to be Cu(+1) during the synthetic process. Cu(+1) has an unprecedented trigonal bipyramidal coordination geometry. The reported synthesis based on asymmetrical dinuclear complexes provides a guideline for the synthesis of hetero-EMACs to allow several analogs via judicious combinations realized by tuning the number of metal nuclei and metal species.
Databáze: OpenAIRE